I have had issues from time to time with lost edits - Often , it seems in retrospect when I have used the file manager that is internal to On1. Most recently I decided to rename several directories of photos to my usual naming convention of "parent directory_sequence number" (I had gotten lazy and not done it for a while and wanted to bring the directories up to date.) Several had been edited and had .on1 .xmp and .onphoto files. When I looked at the resulting directory - many of my edits were gone!
I put a ticket in to On1 and they are still investigating. I went to my backup files compared with the renamed directory. The .on1 which contain the edits which had sizes of 10-15k previously were only 800 bytes after the rename!
As a test I copied a backup of the affected directory (before the rename) to a different harddrive and renamed it with FastStone Image viewer (see attached file .JPG screen capture). The .on1 and .onphoto files were copied and renamed and file sizes preserved. The edits are preserved!
I sent an update to On1 "
I have some interesting information for you. See image file attached below - The files on the right are my Photo directory which was affected by the name change- The files on the left panel are mybackup directory copied to another drive and renamed by FastStone Viewer)
I did indeed have a backup of the directory for the affected images
I had used On1 to rename the files and it appeared that several of the .on1 files had been "zeroed out" by the 2022 renaming function
To test this theory I copied my backup to a directory on a different drive and used FastStone Image Viewer V7.5 to rename the files (All files to include .ON1 and .Onphoto) and you can see the result is very different.
I believe there is a bug in the file manager which will sporadically "zero out" .on1 and .onphoto files.
I am hypothesizing that the bug is in the file manager as this occurred to several of us previously during an inprogram file move. I will stop using the file manager in On1 2022 for copies/moves /renaming for now as you investigate
Hard to know whether this is a windows issue or both Win and Mac
image of my file manager after On1 rename with affected files on right, Fastone rename on left - edits preserved on left)